Combined display case fish tank



FIG. 1 is a perspective view taken from the top, front and left side of a combined display case and fish tank showing my new design;

FIG. 2 is a perspective view taken from the top, rear and left side thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a right side elevational view thereof; and

FIG. 8 is a cross sectional view taken on line 8--8 of FIG. 3. 

The ornamental design for a combined display case and fish tank, as shown and described. 